Undulatory Stride with ribs (VIDEO)
Caption
An XROMM animation showing how the savannah monitor lizard's gait has two phases: propulsion - when the foot is pushing against the ground; and swing-when the foot is in the air. On the forelimb's propulsion side, the ribs rotate around their costovertebral joints towards the head while on the swing side, the ribs rotate towards the tail. This is the movement that facilitates inhalation and exhalation when the ribs move bilaterally. The reconstructed ribs are here superimposed on an x-ray video of the walking animal.
Credit
Cieri et. al., Sci Rep (2020)
Usage Restrictions
Non commercial with attribution
License
Licensed content